Grease Pencil Animation
I got an answer off of Packtpub.com.  If any of you want to check out the course, it's called "Blender 2.8 Game Character Creation."

His method for being able to draw the face in a window at the same angle was to create a camera that was positioned face on at the head of the figure, and then to parent it to the head bone.

It's at that moment when you think: "Why didn't I think of that?"  You just have to look outside the box, I guess.